15 results
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Algorithm Hypertonic ... Urologic irrigants Hypotonic ... Cerebral salt wasting ... #Algorithm #diagnosis ... #sodium #nephrology
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential ... Diagnosis Algorithm ... Serum Osmolarity 2) ... Acid → renal salt wasting ... #nephrology #sodium
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
normal volume-based algorithm ... Cerebral Salt Wasting ... differential #diagnosis ... #table #sodium ... #nephrology
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Hypernatremia Differential ... Diagnosis Algorithm ... history Step #2 ... & desmopressin test ... #Sodium #nephrology
Hyponatremia - Differential Algorithm
Isotonic Hyponatremia: Hyperlipidemia, Hyperproteinemia, Recent TURP
Hypotonic Hyponatremia: 
 • Hypovolemia: Diuretics/Nephropathies, Vomiting, Diarrhea,
Hyponatremia - Differential ... Algorithm Isotonic ... , Recent TURP Hypotonic ... #causes #nephrology ... #sodium #low
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
- Differential ... Diagnosis Algorithm ... water loss, Serum Sodium ... 300 mmol/kg • Hypertonic ... #Nephrology #Differential
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Differential Diagnosis ... Workup Algorithm ... renal mechanism 2) ... #Differential # ... #nephrology #sodium
Hyponatremia - Diagnosis and Treatment
Hyponatremia is usually caused by the inability to excrete water normally.
1) Is it hypotonic ... 2) Is ADH elevated ... up to 3x in the setting ... #Differential # ... #sodium
A lazy man's classification of hyponatremia
There are two possible approaches to the diagnosis of hyponatremia: .
classification of hyponatremia ... essentially the same tests ... osmolality and urinary sodium ... cerebral salt wasting ... #Algorithm #Differential
Hyponatremia Diagnostic Algorithm
1) Check serum osmolality
2) Check urine osmolality
3) ADH Dependent - Check volume status, urine
Algorithm 1) Check ... serum osmolality 2) ... status, urine sodium ... #differential # ... hyponatremia #nephrology